Telegraph transmitting instrument.



(31T. BUCHANAN. TELEGRAPH TRANSMITHNG INSTRUMENT.

APPLICATION FILE AUG,2| 191-1 lzlhrlwAllg. 31, 1915.

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G.' T. BUCHANAN. TELEGRAPH TRANSMITTING INSTRUMENT.

APPLlCATION FILED AUG,27| 1914.

lntented Aug. 31

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' www? @www of the Morse alphabet corresponding to the letters and numerals on the finger keys at the opposite/ends of the key levers 30. A

spring 35 xed to the base and bearing at its free end against the underside of each lever serves to maintain the forward operating,`

ends'of -said levers in elevated position, and the teeth or projections 33 on the opposite end below the plane of the rod 23 on the telegraphI key. Depression of the keys ,by

.the fingers raises the heads 32 and the teeth or projections 33 thereon engage the rod 23 and actuate the telegraph key, the short teethforming the dots and the long teeth thedashes of the Morse alphabet. The plate 12 supporting the telegraph key is normallyl held in its rear-mostl position against the stop 26 by a spring 36, and in this'position the rod 23 is behind the range l' therefrom beforeftheir return movement to prevent a repetition of the signal, means are provided to be actuated by the levers when depressed to automatically draw the plate" 12 and the parts mounted -thereon in a forward direction, and at the completion of said depression disengage said plate and permit it to return under the influence of the spring 36 whereby the rod 23 is "moved backward and beyond the teeth 33 of the returning levers 30. This means comprises a short horizontal shaft 37 extending -across the plate 12 and mounted at its ends I jin bearings 38 fastened to the base 10 or to the guides 11 as shown. Fast on the shaft 37 are two arms 39 that project in a forward direction and carry a horizontal rod 40 that lies'just below the bottom edges of the levers a 30, the rod being of such length as to extend.

beneath all of said key levers, and upon the depressionof any of said levers the rod 40 is lowered and rocks the shaft 37. An arm 41 fixed on the shaft 37 extends in a rear- Ward direction for a short distance and then turns upward, the vertical portion of said arm having a slot 42 therethrough. from front to rear through which extends the -hooked end 44 'of a. 'link 43, the opposite endl of' which link passes through 'a slot in the upright13. The hooked end of the link 43 is held in engagement with the arm 41 by a spring 45 connected to said link and vto the upright 13, said spring also forms a yielding connection between the link and the upright. lThe underside of the hook is beveled upwardly in a forward direction as at 46 to engage a trip Vpin 47 mounted in projections 48 on -the .bearings 38.

The operation ofthe mstrumeiitas ,thus

constructed is as follows: When a finger key 31 is depressed to raise the head 32 and projectinns thereon, the rod 40 is depressed by the downward movement of said key levers and rocks the shaft 37 swinging the arm 41 in a forward direction and throu h the connection of the hooked end of tie link 43 with said .armdraws the plate 12 and the telegraph key supported thereby in a forward direction4 so that the rod 23 on the lower end of said telegraph key will be in position to be actuated by the teeth 33 as they rise. After the teeth have passed the rod 23 and just before the completion of the depressing movement of the key lever 30,-the hook 44 on the link 43 will be disconnected from the rod 41 on the shaft 37 by the inclined surface 46 of the hook 44 riding over the stop pin 47, which lifts said hook suiliciently to permit it to slide freely through the slot 42 in the arm 41 when the plate 12 is drawn rearwardly by the spring 36. The rod 23 by this movement is carried rearwardly of the teeth 33, so that when the key 31 is released the spring V35 returns the lever 30 to its normal position and the teeth 33 move downwardly without encountering the rod 23.

What I claim as new is,

1. A telegraph instrument comprising a Morse key, the operating lever thereof having a. horizontal rod-affixed to its free end, a plurality of finger key levers each representing a different letter or character, projections or teeth on one end of each lever adapted to coperate whenl depressed with said rod to actuate the Morse key, means actuated by each of said key levers when depressed to cause said Morse key to move into engagement with said teeth or projections, and a trip for disconnecting said means to permit the return of the Morse key before the key lever rises.

2. In combination with a plurality of key levers each haying on one-end projections or teeth, a swinging circuit-closing lever having a rod on its free end adapted to be engaged by the teeth on each key lever when depressed to send a signal over the line, a sliding support on which said oircuit closing lever is mounted, means actuated by the key levers when depressed to move said support and carry the circuit-closing lever into en gagement with the .projections onthe downwardly moving key, lever, and releasing means to permit the return of said support and said key when the depression movc ment of the key lever is completed. f

3. In combination with a plurality of key levers each having on one end projections or teeth, a swinging circuit closing lever adapted to be engaged by the projections on each key lever when depressed to send a signal over the line, a sliding support for said circuit closing lever, resilient means for holding said sliding support and the circuit closing lever away from the key levers, a rocking member below the key levers actu- Meiner ated upon the depression of each key lever to move the sliding support toward the key levers, und a. trip connection lbetween said rnelnleer und seid Support that is released before the return of the key lever and permits the return o the support.

1L ln combine tion with e plurality of key levers each having en one end projections;

ror teeth, a swinging eireuit closing lever erlnptetl to be engaged hy the projections on each key .lever when depressed to send :i signal over the line, n sliding' support for seid eireuit closing lever, resilient means .for holding snicl support und the Circuit closing lever away from the projeetions,^eu rocking member below the key levers uetuated upon the depression oli eeeli liey lever to move the elreuitcloeing lever inte engagement with the key lever, n. link connectetl et one end to the sliding support enel hevqng e hook on its opposite end to engage the rocking member for the purpose ol' moving Suid circuit-closing lever inte position for oiiperetion with said projection, and tripping ineens l'or releasing the hooked end of seid connecting link to permit the return n'iovrinent of the sliding support.

A, telegraph instrument comprising u' ll/'lorse key, u plurnlity ot finger key levers euch provirlefl with ineens on one end for operating the ls/lforse key, u roelziug member below the key levers adapted to be netuute upon 'the depression of eut-.l1 lever, :t link eonneetion between the lllorse key und to the rocking member lior moving Suid "Morse key when the key levers are depressed into eoogerzttive relntien therewith, u spring 'for l1-living the Morse key away -from the key levers, und tri pping ineens between Said link end-:ietuate the llilorse key when seid key lever is operated, u; l. means actuated hy the operation of euch `key lever to move sliding support enel bring seid Morse key into engagement with .eniil teethv or projections, seid sliding' support und key lever heingv returned to normal position 'upon the em'nplete operation of key lever.

In combination with e. plurality of key levers each having on one enel Qrojeetions or teeth, n Sliding` support, n swinging eirel'lit-elosing lever mounted on suicl support. ineens actuated by the operation of eneh key lever to more sniol sliding support :incl curry the circuit-closinglever into engagement with the projections on the key lever when the latter moves in one direction, eurl trip-4 ping ineens to permit the return el' seitlsupport intl seid liey upon the Complete operation oli seid key lever to prevent the engagement of the teeth with said circuiteloeing lever when the key .lever moves .in the other direction.

ln testimony whereof l have hereunto eet my he .d in. presence of two subscribing Wit nessee GEORGE T. B'UCHJLNAN. llitnesees T. C. GRGGAN,

l. R. TREMAIN. 

